摘要
目的计算最近一个太阳活动周期内(1997-2007年)飞行人员每年的宇宙辐射受照水平,为制定飞行人员的辐射防护管理措施提供依据。方法根据460条飞行航线数据,用民航宇宙辐射剂量计算系统CARD计算飞行人员飞行过程中受到的宇宙辐射有效剂量。结果最近一个太阳活动周期内,在460条航线中,一次飞行过程中受宇宙辐射有效剂量最大为18.00μSv,最小为0.37μSv。460条航线年均有效剂量率在2007年最大,为1.91μSv/h,该年,飞行员的个人年均有效剂量最大为1.91 mSv,乘务员最大为2.67 mSv。结论在最近一个太阳活动周期内,飞行员和乘务员宇宙辐射年均受照有效剂量都在国际辐射防护委员会(ICRP)建议的限值之内。
OBJECTIVE To calculate the exposure level of cosmic radiation to aircrew members during the last solar cycle,so as to provide the basis for working out the measures for radiation protection.Methods According to the flight data of 460 airline routes,the cosmic radiation effective doses received by aircrew members on aircraft flights were calculated by using software CARD.Results The maximum effective dose on aircraft flight was 18.00μSv,and the minimum was 0.37μSv during one flight.For all routes,the maximum annual average effective dose rate was 1.91 μSv/h in 2007,and the maximum annual individual effective dose was 1.91 mSv for pilots,and 2.67 mSv for flight attendants.Conclusion For pilots and flight attendants,the annual average cosmic radiation effective dose during the last solar cycle was within recommended limit of International Commission on Radiological Protection（ICRP）.
出处
《解放军预防医学杂志》
CAS
2011年第5期332-335,共4页
Journal of Preventive Medicine of Chinese People's Liberation Army
基金
国家自然科学基金资助项目(No.60472119
No60672175)
关键词
辐射防护
宇宙辐射
飞行人员
剂量计算
radiation protection
cosmic radiation
aircrew member
dose calculation〖HT6SS
